What This Guide Covers
This evergreen guide explains the DC Metro Blue Line schedule, focusing on predictable service patterns you can rely on. It covers standard weekday, weekend, and holiday timetables, first and last train times, typical headways, transfer points, and how service alerts can shift frequencies. Where useful, it shows how to interpret real-time arrivals and choose departure windows that minimize wait times. The intent is to give you durable, fact-based reference material you can use when planning commutes and trips.
Why Schedule Literacy Matters on the Blue Line
Understanding the Blue Line schedule reduces uncertainty, helps you avoid missed connections, and supports more efficient trip planning. Fares, passes, and station amenities matter, but predictable service and headways matter more for daily reliability. This guide is structured to let you quickly find the information you need, whether you are planning a morning commute or arranging an evening transfer. Read the sections most relevant to your trip type first, then check real-time tools before you leave.
Weekday Service Patterns
Peak Period Headways and Train Lengths
On weekdays, Blue Line trains typically run every 6 to 8 minutes during morning and evening peaks, with staggered branches that influence platform selection. Midday service usually maintains similar headways, while late evening sees longer intervals as many trains terminate early. Trains commonly operate in eight to ten car configurations at peak, reducing to six cars late at night, which can affect platform crowding and boarding speed.
First and Last Train Times
Blue Line first trains usually depart terminals around 5:00 a.m., with exact minutes varying by station and end of line. Evening last trains often start between 11:00 p.m. and midnight, though some lines provide later service on select routes or special event days. Always check the current timetable for your specific origin and destination pair, because overnight work, track maintenance, and special events can shift these times without notice.
| Attribute | Verified Detail | Source Type |
|---|---|---|
| Typical First Train (weekday) | Approximately 5:00 a.m. from most terminals | Metro published schedule |
| Typical Last Train (weekday) | Approximately 11:00 p.m. to midnight from most terminals | Metro published schedule |
| Peak Headway | 6–8 minutes | WMATA operational data |
| Midday Headway | 6–10 minutes | WMATA operational data |
| Late Evening Headway | 10–15 minutes | WMATA operational data |
Weekend and Holiday Patterns
Saturday and Sunday Service
Weekend schedules on the Blue Line tend to have slightly longer headways than weekdays, often ranging from 8 to 12 minutes depending on the time of day. Saturday hours generally mirror weekday service, but with reduced late-night trains. On Sundays, start times may be later and frequencies a bit lower, with fewer branches in service. Plan for possible changes if special events, such as marathons or festivals, affect station access or require reroutes.
Holiday Adjustments
On federal holidays, Metro typically operates an abbreviated schedule, with reduced hours and extended headways. Some branches may not run at all, and stations near event venues might close early. If you are traveling on a holiday, check the Metro holiday timetable in advance and allow extra time for security and entry. Reliable alternatives, such as Metrobus or rideshares, can be useful when Blue Line service is limited.
Service Alerts and Reliability Factors
Planned work and unexpected incidents can alter the DC Blue Line schedule on any given day. Track maintenance, signal upgrades, and station renovations often occur overnight or on weekends, with details published in advance. Incidents like medical emergencies, congestion, or weather can cause temporary delays. To stay informed, use Metro’s real-time arrivals, subscribe to alerts for your stations, and review the service status page before heading out.
How to Read Real-Time Arrivals
Real-time arrival displays estimate when the next train will reach your station, expressed in minutes rather than clock time. During peak periods, you may see trains listed at regular intervals, while late night shows larger gaps. If the display shows a train already at the station, expect a short wait for the next departure. When multiple branches serve your station, confirm the destination displayed, because branching patterns affect both travel time and platform choice.